When running iotop from the command line without 'sudo', I get a traceback. I expected a more-friendly error message such as "You must have superuser privileges to run this program". At the very least, I'd expect not to see the traceback. iotop version is 0.4.3-1ubuntu1 on 11.10 amd64.
steve@steve-laptop:~$ iotop
Traceback (most recent call last):
File "/usr/bin/iotop", line 16, in <module>
main()
File "/usr/lib/python2.7/dist-packages/iotop/ui.py", line 563, in main
main_loop()
File "/usr/lib/python2.7/dist-packages/iotop/ui.py", line 553, in <lambda>
main_loop = lambda: run_iotop(options)
File "/usr/lib/python2.7/dist-packages/iotop/ui.py", line 465, in run_iotop
return curses.wrapper(run_iotop_window, options)
File "/usr/lib/python2.7/curses/wrapper.py", line 43, in wrapper
return func(stdscr, *args, **kwds)
File "/usr/lib/python2.7/dist-packages/iotop/ui.py", line 457, in run_iotop_window
process_list = ProcessList(taskstats_connection, options)
File "/usr/lib/python2.7/dist-packages/iotop/data.py", line 373, in __init__
self.update_process_counts()
File "/usr/lib/python2.7/dist-packages/iotop/data.py", line 429, in update_process_counts
stats = self.taskstats_connection.get_single_task_stats(thread)
File "/usr/lib/python2.7/dist-packages/iotop/data.py", line 158, in get_single_task_stats
reply = GeNlMessage.recv(self.connection)
File "/usr/lib/python2.7/dist-packages/iotop/genetlink.py", line 50, in recv
msg = conn.recv()
File "/usr/lib/python2.7/dist-packages/iotop/netlink.py", line 229, in recv
raise err
OSError: Netlink error: Operation not permitted (1)
steve@steve-laptop:~$ ubuntu-bug iotop
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: iotop 0.4.3-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-15.24-generic 3.0.13
Uname: Linux 3.0.0-15-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Mon Dec 19 09:11:48 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: iotop
UpgradeStatus: Upgraded to oneiric on 2011-09-02 (107 days ago)
duplicate 897411